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[帮助文档] SQLMySQL提示1055(42000):SELECTlistisnotinGROUPBYclauseandcontainsnonaggregatedcolumn

问题现象在执行MySQL命令进行查询时，提示如下错误：1055(42000): SELECT list is not in GROUP BY clause and contains nonaggregated column可能原因该报错可能由以下两种原因引入：原因一：用户修改了sql_mode参数...

[帮助文档] 创建数据库提示ERROR1044(42000):Accessdeniedforuser'xxxx'@'%'todatabase'xxxx'

RDS MySQL普通账号默认仅拥有登录数据库的权限，您需要先使用高权限账号对普通账号授予CREATE权限。授权语句示例： GRANT CREATE ON *.* TO ''@'%';GRANT CREATE ON *.* TO ''@'%';更多信息，请参见修改账号权限...

Using Trigger after logon on database limit IP&USER access your Oracle database

最近有个项目需要限制某些数据库用户的访问来源IP，在PG中比较好实现，但是ORACLE没有比较简便的操作。如果不管用户的话，仅仅限制来源IP对监听的访问是比较容易实现的，通过配置数据库服务器的sqlnet.ora文件或者修改数据库服务器的IPTABLES等手段实现。sqlnet.ora范例:tcp....

PostgreSQL per database or per user audit use pg_log_userqueries

PostgreSQL 本身并不带针对某数据库或某用户的SQL审计功能。通过pg_log_userqueries可以达到这样的目的。首先到pgxn下载pg_log_userqueries模块 : 我测试的是0.4.0版本。 1. 安装# unzip pg_log_userqueries-...

Practice:Demonstrating Database User Objects, Roles and Permissions

This practice uses common UNIX and Windows NT Oracle utilities to review database user objects’ key roles and 本文转自maclean_007 51CTO博客，原文链接:http://blog...

26.2. create database and user

# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 10 Server version: 5.0.77 Sour...

IO is frozen on database xxx, No user action is required

最近遇到一起关于"I/O is frozen on database xxx. No user action is required. However, if I/O is not resumed promptly, you could cancel the backup."的案例。出现问题的时候...

ORA-12537 if Listener (including SCAN Listener) and Database are Owned by Different OS User [ID 1069

ORA-12537 if Listener (including SCAN Listener) and Database are Owned by Different OS User [ID 1069517.1] 修改时间 05-JUN-2011类型 PROBLEM状态 PUBLISH...

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数据库网关

数据库网关（Database Gateway）是一种支持私网数据库远程访问的数据库连接服务。通过数据库网关，用户可以使用应用程序或云服务访问并管理本地IDC或其他云厂商的数据库。

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denied user Database